#include<bits/stdc++.h>
using namespace std;
int main(){
    double l,r,v;
	cin>>l>>r>>v;
	cout<<"Q:"<<l*r<<endl;
	cout<<"C:"<<(l+r)*v<<endl;     

}


/**************************************************************
	Problem: 1958
	User: admin
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/